Apps your kids hope you don’t know about 3.22.16

If you’re a parent who monitors what their kids are using on their smartphones, this story is for you.

Even if you swipe through the screens checking out any suspect apps, you won’t notice these. They all look like calculators, but they’re actually secret lockers or vaults where users (your kids) can hide text messages, photos, videos, contacts and anything else they don’t want you to see.